Drip emitter
US9872444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drip emitter is described herein that is advantageously configured to allow large grit to pass through the drip emitter when in use. The drip emitter includes a housing containing a flow path extending between a water inlet and a water outlet, a pressure-reducing segment, such as a tortuous path, of the flow path downstream of the inlet and upstream of the outlet, and a dynamic pressure regulator downstream of the water inlet and upstream of the pressure-reducing segment of the flow path. The dynamic pressure regulator is configured such that a decrease in pressure in the pressure-reducing segment of the flow path causes the dynamic pressure regulator to adjust to maintain a generally constant rate of flow through the water inlet as compared to the rate of flow when there is no decrease in pressure in the pressure-reducing segment of the flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.